Guides tagged “security”
Step-by-step MdmHost guides about security, sorted A-Z.
248 guides · page 10 of 13
Secure Nginx with a free Let's Encrypt SSL certificate
Install Certbot, issue a free certificate for your domain, redirect HTTP to HTTPS and make sure renewal runs on its own.
Secure Remote Desktop on Windows Server
Stop password-guessing on Remote Desktop with strong passwords, Network Level Authentication, a lockout policy and firewall rules limited to your IP.
Secure your DirectAdmin login: password, 2FA and login keys
Change your DirectAdmin password, enable two-step authentication with an authenticator app, review login history and create limited login keys for the API.
Secure your MdmHost account
Protect your MdmHost account with a strong unique password, a password manager and two-factor authentication, review who can sign in, and learn to spot phishing emails.
Secure your Plesk login: password reset and two-factor authentication
Change or reset your Plesk password, turn on two-factor authentication with an authenticator app, review active sessions and recover access if you lose your phone.
Secure your Virtualizor account with 2FA and SSH keys
Change your Virtualizor panel password, enable two-factor authentication, restrict login IPs, add SSH keys for OS installs and review the panel's login and task logs.
Securing Docker images against vulnerabilities and malware
Scan Docker images for known CVEs and malware, then harden the build and the runtime so a compromised container cannot spread across your VPS.
Securing Windows Server: Hardening the Registry and Services
Reduce the attack surface of a Windows VPS by backing up the registry, applying LSA and SMB hardening, and disabling services you do not use.
Security best practices for WHM resellers
Practical security steps for resellers: protect your WHM login, set safe package defaults, limit email abuse, keep customers updated and respond fast to a hacked account.
SELinux basics on AlmaLinux and Rocky Linux
Understand SELinux modes and contexts on AlmaLinux and Rocky Linux, fix common permission-denied problems with restorecon and booleans, without turning SELinux off.
Set correct WordPress file permissions and ownership
Fix WordPress file permissions on cPanel hosting: the right values for folders, files and wp-config.php, how to apply them in File Manager or SSH, and why 777 is unsafe.
Set up a private network between VPS servers
Connect web, database and cache servers privately: provider private networks and VLANs, configuring a second interface with Netplan, binding services to private IPs, firewalling, and VPN alternatives.
Set up a secure FTPS server with vsftpd on Linux
Install vsftpd, force TLS encryption (FTPS), jail users in their home folders, configure passive ports for firewalls and test with FileZilla on Ubuntu or AlmaLinux.
Set up a secure SFTP file server on Linux with chroot jails
Turn a Linux VPS into a file server with SFTP-only users locked into their own folders using OpenSSH, and learn when FTP (vsftpd), Samba or NFS are the better choice.
Set up a separate MySQL/MariaDB database server for your web servers
Move the database to its own server: bind MariaDB to a private IP, create users restricted to app servers, firewall port 3306, enable TLS and connect your application.
Set up a UFW firewall on Ubuntu and Debian
Set safe defaults, allow SSH before switching UFW on, open only the ports you use, limit sensitive ports to your own IP, and tidy up old rules.
Set up a UFW firewall on Ubuntu and Debian
Enable UFW without locking yourself out, allow SSH and web ports, restrict services to specific IPs, rate-limit SSH and understand how Docker bypasses UFW.
Set up a WireGuard VPN server on a Linux VPS
Install WireGuard on an Ubuntu or Debian VPS, create server and client keys, enable forwarding and NAT, and connect from Windows, macOS or a phone.
Set up MTA-STS and TLS-RPT to secure inbound email
How MTA-STS forces encrypted delivery to your mail servers, how TLS-RPT reports problems, and how to publish the DNS records and HTTPS policy file step by step.
Set up mutual TLS (client certificate authentication) on Nginx
Protect admin panels and APIs with mutual TLS: create a private CA with OpenSSL, issue client certificates, require them in Nginx, pass identity to the app and revoke access.
Browse by topic
- Getting startedYour first hour with a new server: access, logins and basics.83 guides
- cPanelFiles, databases, email, domains and every cPanel tool, step by step.67 guides
- WHM & resellingWHM, packages, reseller accounts, WHMReseller and running a hosting brand.53 guides
- WordPressInstall, secure, speed up, migrate and fix WordPress sites.49 guides
- Email & webmailMailboxes, webmail, forwarders, spam filters and email delivery.67 guides
- DomainsRegistering, transferring and managing domains and nameservers.27 guides
- SSL certificatesFree AutoSSL, Let's Encrypt, paid certificates and HTTPS.41 guides
- CloudLinuxCloudLinux setup and use: LVE limits, CloudLinux Manager, CageFS and PHP/Node.js selectors.31 guides
- LiteSpeedLiteSpeed Web Server, LSCache and the LiteSpeed Cache plugin: install, settings and tuning.35 guides
- Imunify360Malware scanning, firewall and proactive defence with Imunify360.24 guides
- SoftaculousInstall, update, clone and back up apps with Softaculous.24 guides
- WP SquaredcPanel's WordPress platform: sites, plugins, staging and backups.9 guides
- SitePadBuild and publish websites with the SitePad builder.9 guides
- SitejetDesign, edit and publish sites with the Sitejet builder.9 guides
- WHMResellerAlpha and master resellers with WHMReseller: install, setup and use.12 guides
- VirtFusionInstall, set up and manage VirtFusion: hypervisors, packages, servers and WHMCS integration.28 guides
- VirtualizorManage your VPS with Virtualizor: power, OS reinstall, VNC, IPs and backups.44 guides
- PleskWebsites, email, databases and settings in the Plesk panel.53 guides
- DirectAdminUsers, domains, email and reseller tools in DirectAdmin.41 guides
- WHMCSBilling, automation, products and client management with WHMCS.52 guides
- Control panelscPanel & WHM, Plesk, DirectAdmin and other panels on your VPS.107 guides
- SecurityKeys, passwords, firewalls and keeping a server patched.138 guides
- Networking & DNSIP addresses, reverse DNS, ports and traffic.72 guides
- Websites & appsWeb servers, WordPress, PHP, Node.js, SSL and app hosting.83 guides
- DatabasesMySQL, MariaDB, PostgreSQL, Redis and MongoDB on a VPS.80 guides
- Billing & accountInvoices, renewals, the client area and your account.9 guides
- TroubleshootingWhen something is not working: checks and fixes.127 guides
- Linux VPSSSH, packages, services and everyday Linux administration.265 guides
- Windows VPS & RDPRemote Desktop, Windows Server settings and Admin RDP tips.73 guides
- Docker & DevOpsContainers, Git deploys, automation, monitoring and backups.82 guides
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